Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 25

Waxing Crescent 45%

09:57

No Set

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:52, Set: 16:32, Transit: 12:12. Moon - Rise: 09:57, Set: No Set. Civil Dark: 17:10 - 07:14. Nautical Dark: 17:52 - 06:32. Astro Dark: 18:33 - 05:51

Total Clouds (% Sky Obscured)

100
99
97
100
100
100
100
100
97
92
94
98
100
97
99
100
100
100
99
97
95
81
68
78

Low Clouds (% Sky Obscured)

45
60
55
86
86
84
96
100
92
84
89
98
100
94
99
100
100
99
97
93
90
81
68
78

Medium Clouds (% Sky Obscured)

99
95
97
100
100
100
97
84
95
89
47
30
38
67
72
23
21
21
22
18
21
18
13
0

High Clouds (% Sky Obscured)

52
73
65
82
90
88
92
82
60
3
2
2
7
32
11
33
38
15
15
6
6
11
3
3

ISS Passover

Visibility (miles)

9
9
9
9
9
5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
None
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

76
94
12
33
61
48
32
33
27
38
38
8
4
5
1
2
0
0
0
1
0
2
2
1

Precipitation Amount (mm)

0.5
0.8
0
0
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
17
17
16
16
16
16
16
16
15
15
15
14
13
11
11
11
11
11
10
10
9
7
8

Chance of Frost

Temperature (°C)

6
6
6
6
6
6
6
6
6
6
6
6
6
7
6
6
6
5
5
5
5
4
4
3

Feels Like (°C)

0
-1
-0
0
0
1
0
0
0
0
0
0
2
2
3
2
2
1
1
1
1
0
2
1

Dew Point (°C)

3
3
4
4
4
5
5
4
4
5
4
4
4
4
5
4
4
4
3
3
3
2
2
2

Relative Humidity (%)

83
85
86
88
88
93
93
91
91
93
91
91
88
85
88
88
88
90
88
88
86
86
91
91

Pressure (mb)

995
995
995
994
994
993
993
994
994
995
995
995
995
996
996
996
997
997
998
999
1000
1000
1001
1001

Ozone (du)

416
415
413
417
421
426
430
430
432
435
438
435
431
428
425
422
421
422
426
429
430
432
430
429

Monday 26

First Quarter 57%

10:12

01:14

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:51, Set: 16:33, Transit: 12:12. Moon - Rise: 10:12, Set: 01:14. Civil Dark: 17:12 - 07:13. Nautical Dark: 17:54 - 06:30. Astro Dark: 18:35 - 05:50

Total Clouds (% Sky Obscured)

74
73
79
81
98
99
99
99
99
97
95
95
100
100
100
100
100
100
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

74
73
79
81
98
99
99
99
99
96
93
92
98
92
92
97
91
86
96
95
84
83
100
84

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
65
99
100
98
67
70
77
100
100
100
42
53

High Clouds (% Sky Obscured)

3
3
0
0
0
0
2
2
2
3
31
64
100
75
100
100
100
100
87
100
100
100
50
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
1
1
1
1
2
0
0
1
0
0
0
0
0
0
1
1
18
12
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
8
8
7
7
7
7
8
8
8
8
10
10
10
10
10
10
11
13
14
13
13
15

Chance of Frost

Temperature (°C)

3
3
3
3
3
4
4
4
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Feels Like (°C)

1
1
1
0
0
0
-0
0
-1
-1
-1
-0
-0
0
0
-0
-1
-1
-1
-1
-2
-1
-1
-2

Dew Point (°C)

2
2
2
1
1
1
0
0
1
0
0
1
1
1
1
1
1
2
2
2
2
2
2
2

Relative Humidity (%)

91
91
91
89
89
80
79
79
83
80
79
82
76
77
80
77
82
83
83
85
85
85
85
85

Pressure (mb)

1002
1002
1002
1002
1002
1003
1003
1003
1003
1004
1004
1003
1003
1002
1002
1002
1001
1002
1001
1001
1000
999
999
998

Ozone (du)

433
439
440
440
444
442
440
434
434
435
437
440
447
442
434
425
412
402
393
385
380
378
380
382

Tuesday 27

Waxing Gibbous 68%

10:33

02:45

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:50, Set: 16:35, Transit: 12:12. Moon - Rise: 10:33, Set: 02:45. Civil Dark: 17:13 - 07:11. Nautical Dark: 17:56 - 06:29. Astro Dark: 18:36 - 05:49

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
91
90
89
81
75
69

Low Clouds (% Sky Obscured)

77
83
75
79
100
100
82
95
93
99
100
100
97
100
100
100
92
84
83
81
74
75
70
66

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
75
29
29
100
100
100
100
100
100
55
62
57
56
10
5
2
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
70
100
100
100
100
100
100
100
100
81
72
53
40
40
2
0

ISS Passover

Visibility (miles)

9
9
9
9
5
5
6
3
9
9
9
9
6
5
3
3
4
0
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

32
40
38
73
95
95
95
83
67
73
95
95
95
95
95
95
95
87
34
21
4
7
10
18

Precipitation Amount (mm)

0
0
0
0.2
0.8
0.9
0.8
0.4
0.3
0.3
0.5
1.6
0.9
0.9
1.2
1
0.6
0.5
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
18
19
19
21
22
22
23
22
21
20
19
18
19
17
17
17
17
18
17
16
16
15
17

Chance of Frost

Temperature (°C)

4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
4
5
6
7
7
7
6

Feels Like (°C)

-2
-2
-3
-3
-3
-3
-3
-3
-3
-2
-1
-1
-1
-2
-2
-3
-3
-4
-3
-2
-1
-2
-2
-4

Dew Point (°C)

2
2
2
2
2
3
3
3
3
4
4
4
4
4
4
3
3
4
4
4
5
3
2
2

Relative Humidity (%)

85
88
88
88
88
89
91
91
91
91
93
93
93
93
93
91
91
94
94
91
87
76
74
74

Pressure (mb)

997
996
994
993
992
990
989
988
987
987
986
985
985
984
983
982
982
981
981
981
981
981
981
981

Ozone (du)

380
376
374
372
369
368
370
376
381
377
373
373
374
372
372
366
364
365
369
371
375
383
389
394

Wednesday 28

Waxing Gibbous 79%

11:05

04:16

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:48, Set: 16:37, Transit: 12:13. Moon - Rise: 11:05, Set: 04:16. Civil Dark: 17:15 - 07:10. Nautical Dark: 17:57 - 06:28. Astro Dark: 18:38 - 05:48

Total Clouds (% Sky Obscured)

76
82
90
91
65
52
42
74
67
68
38
42
44
46
49
46
43
50
45
47
34
48
60
67

Low Clouds (% Sky Obscured)

74
81
88
86
65
52
42
42
34
44
38
42
44
46
49
46
43
49
40
31
22
25
29
32

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
13
33
50
36
18
0
19
39
50

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
20
25
23
1
0
14
23
38
27
17
4
13
22
30
43
58
67

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

14
46
34
25
6
2
2
1
0
0
0
0
0
0
0
2
3
1
2
2
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
20
20
20
19
17
15
13
10
8
9
10
12
12
12
12
12
12
12
11
10
10
10
10

Chance of Frost

Temperature (°C)

6
6
5
5
5
5
5
4
4
3
4
6
7
7
7
8
7
6
6
5
5
4
4
4

Feels Like (°C)

-4
-5
-5
-5
-4
-3
-1
-1
-2
-1
1
3
4
4
4
4
3
3
2
1
1
1
0
0

Dew Point (°C)

1
2
3
3
2
1
1
1
1
1
2
3
3
4
4
4
4
4
4
4
3
3
3
2

Relative Humidity (%)

70
78
91
83
78
76
79
80
85
86
85
80
78
78
77
79
84
88
90
90
89
89
89
88

Pressure (mb)

981
982
983
984
986
987
988
989
990
991
992
992
993
993
993
993
993
993
994
994
994
995
995
995

Ozone (du)

399
412
414
427
426
430
439
438
459
458
461
457
464
464
464
462
458
466
479
481
486
492
500
501

Thursday 29

Waxing Gibbous 88%

11:55

05:38

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:46, Set: 16:39, Transit: 12:13. Moon - Rise: 11:55, Set: 05:38. Civil Dark: 17:17 - 07:09. Nautical Dark: 17:59 - 06:27. Astro Dark: 18:39 - 05:46

Total Clouds (% Sky Obscured)

70
93
100
77
100
100
94
88
83
88
91
95
96
98
100
100
100
100
100
100
100
100
100
97

Low Clouds (% Sky Obscured)

53
74
95
77
93
92
86
81
75
73
72
71
64
57
50
60
69
79
86
93
100
100
98
94

Medium Clouds (% Sky Obscured)

45
40
43
38
38
38
27
17
2
42
51
76
84
92
100
100
100
100
96
94
91
80
69
57

High Clouds (% Sky Obscured)

60
55
55
60
55
55
40
51
0
39
44
34
24
12
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
7
8
9
8
6

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
2
9
12
5
6
2
10
4
1
5
6
4
23
34
46
62
63
45
38
29
25

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0

Wind Speed/Direction (mph)

10
11
12
13
13
14
15
14
14
15
16
15
16
16
16
16
16
17
18
16
15
15
14
13

Chance of Frost

Temperature (°C)

4
4
4
4
4
5
5
5
4
4
5
5
6
6
6
6
6
5
5
5
5
5
5
5

Feels Like (°C)

0
0
-1
-2
-0
-1
-1
-1
-1
-2
-1
-1
0
0
0
-1
-0
-0
0
-2
-1
-2
-1
-1

Dew Point (°C)

2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
3
4
4

Relative Humidity (%)

88
89
89
89
91
89
89
91
91
89
86
83
79
82
83
83
85
86
88
88
90
88
90
91

Pressure (mb)

995
994
994
994
994
994
993
993
993
993
993
992
992
991
990
990
989
988
988
988
988
988
988
989

Ozone (du)

507
494
488
486
483
447
385
359
352
353
358
369
377
377
377
377
378
378
379
381
382
384
382
379

Friday 30

Waxing Gibbous 95%

13:06

06:42

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:45, Set: 16:41, Transit: 12:13. Moon - Rise: 13:06, Set: 06:42. Civil Dark: 17:19 - 07:07. Nautical Dark: 18:00 - 06:25. Astro Dark: 18:41 - 05:45

Total Clouds (% Sky Obscured)

94
96
100
100
100
100
97
94
91
95
98
99
95
86
78
80
90
100
100
100
100
93
89
85

Low Clouds (% Sky Obscured)

94
96
100
96
90
85
84
81
74
78
82
86
88
86
78
80
73
69
67
69
67
58
48
43

Medium Clouds (% Sky Obscured)

74
87
100
100
100
100
97
94
91
86
81
76
57
38
19
29
42
58
63
78
84
80
72
65

High Clouds (% Sky Obscured)

3
6
5
8
12
15
15
15
15
15
20
20
13
7
1
22
43
60
70
70
75
60
45
30

ISS Passover

Visibility (miles)

5
6
8
9
9
9
9
9
9
9
9
9
9
8
6
5
6
8
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

29
47
57
59
71
81
65
45
28
36
35
35
29
40
52
34
26
26
34
39
39
31
24
12

Precipitation Amount (mm)

0
0
0.3
0.3
0.5
0.7
0.4
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
14
14
13
12
11
10
9
9
7
6
6
7
8
10
8
7
7
6
6
7
6
6

Chance of Frost

Temperature (°C)

5
6
6
6
6
5
5
5
5
6
6
7
8
7
7
7
7
6
6
6
6
6
6
6

Feels Like (°C)

-1
1
1
1
2
2
2
1
1
2
2
2
2
5
5
5
4
4
4
3
3
4
4
4

Dew Point (°C)

5
5
5
5
5
4
4
5
5
5
5
5
5
6
6
6
6
6
5
5
5
5
5
5

Relative Humidity (%)

94
93
93
93
93
93
94
94
94
94
91
88
85
88
91
93
94
94
94
94
94
94
93
93

Pressure (mb)

989
988
988
988
988
988
988
988
989
989
988
988
988
988
988
988
988
988
988
988
988
988
988
988

Ozone (du)

377
377
377
376
381
386
391
400
408
416
419
421
423
425
427
429
426
422
419
422
424
426
426
425

Saturday 31

Waxing Gibbous 99%

14:33

07:25

Sun - Rise: 07:43, Set: 16:43, Transit: 12:13. Moon - Rise: 14:33, Set: 07:25. Civil Dark: 17:20 - 07:06. Nautical Dark: 18:02 - 06:24. Astro Dark: 18:42 - 05:44

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 25/01/26 00:00:31. Forecast: 25/01/26 to 31/01/26. Timezone: UTC+0.00